non-hydrocarbon gasesの例文

• The coal - bed gas is the one kind low pollution energy , and its major composition is methane , a small amount heavy hydrocarbon and some non - hydrocarbon gas bodies ( such as nitrogen gas , the carbon dioxide etc )
• The coal - bed gas contains many kinds of heavy hydrocarbon gas bodies and the non - hydrocarbon gas , which possesses the characteristic of variable component . if the nature gas engines are fueled with the coal - bed gas directly , they will work abnormally